Auxiliary air valve



W. M. COWARD AUX ILIARY AI R VALVE Flled Aprll 28, 1921 Sept. 18, 1923.

Patented Sept. 18, 1923..

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WILLIAM MON'IAGU oowaan, or'nonrnsrnnnr, new so rI-I WALES, ATISTRALIA,

ASSIGNOR To rnnnnnrcx onc'rr eansesr, or srnnnannw scorn TRALIA.

AUxrLrAaY Aia'vaLvE.

Application filed a ru'es, 192 i Seria1'No.465,1 80.

To all whom it may concern.

Be it known that If 'WILLIAM MoNrAeo of Great Brit-- COWARD, a subject of the Kin V ain and Ireland, residing at illcrest', 8 Blue Street, North Sydney; in the State of New South Wales and Commonwealth of Australia, have invented certain new and useful Improvements in an Auxiliary Air Valve, of

which the following is a'specification.

This invention relates to an auxiliary air supply for internal combustion'engine's and the object of the invention is to provide a simple and effective device ;which can be readily attached to the dash-board of a motor vehicle or in any otherconvenie'nt position, by means of which let. A suppleinentary air supply can be automatically drawn into the engine cylinders by the action of the pi tons according to the re quirements of the engine;

2nd. By means of which the supplementary air supply can'be immediately cut off 3rd. By means of which an unobstructed flow of air can be immediately admitted to the engine cylinders (a) for the purpose of I flushing out and cooling the same, (b) to provide a more effective brake'by supplying a greater resistance to the pistons during the compression strokes. I V

The invention comprises a three-way plug seating within a casin with corresponding ports therein, a stem on said trol handle movable in front of an indicator plate which is adapted tobe securedto the dash-board or the like, a valve chamber and pipe socket on said casing, and an adjustable self-acting air valve within said valve chamber with inlet and outlet apertures; 7

But in'order that the invention may be clearly understood reference .will now be made to the accompanying drawings which illustrate a suitablemethod of carrying out the invention. v

Figure 1 is a perspective view of the device.

Figure 2 is a vertical side elevation showing the device in position on the dash-board of a motor vehicle.

Figure 3 is a vertical back section showing the device set to automatically operate with the movement of the engine pistons.

Figure 4 is a similar section showing thedevice set to be out of action and the air sup ply cut oil".

Figure 5 is a rear sectional elevation plug with con- 7 g w 7 passes through" bracket 27.

WAL S, AUS- 7 showing the device setto'shut' the automatic I valve'ott and fully open the pipe 'way: and

showing the spring control for the automatic valve.

1 The plug 6; which a 'preterably of the" usual tapering form is hollowwith three ports 7, 8 and 9,01 which 7 and 8 are direc'tly'opposed to each otherand '9' is midway between? and 8, that is line, at right angles to the: center line of? and 8. The plug'ti has" a projecting stem.

-6 whim passes through an indicator'plate 10.. and has on its'ifree end anadjustable con-V trol lever or handle 11 the pipe 1'5-leading to the induction pipe of engine, and with the port 16 cut in' the cas ing wall which port hasanarea equa'l'to the sectional area of the pipe 15. The valve chamber 14 lisclosed'a't its top end by a screw plug "17 which has formed therein seat-1'8 forvalve 19 that has ahollow stem 20 whiclilpassesthrough ping 17 and has inlet apertures 21 and outle't apertures 22 vThe valvez'l9 is normally held on its seat. 18 byfa spring controlled pivoted lever 23 one arinfof which engages 218101324 in valve stem 20 while' the' other 'arifnl is: depressed by a' spring 25 surrounding rod. 26 which 'A"nut'f 28 is provided on-rod 26 for adjusting the tension of spring 25. The device is preferably secured tofth'e dash-board 29 igure 2) by bolts 30 -which pass through the indicator plate 10, the. clash-board 29, and the lugs or to say has its center-' V p with set screw 12; The'plug' 6 seatsin'casing 13 and forms a three-way cockconimtinicating through the r flange 31 formed on the casing 13 where they are secured by nuts 32. A coil spring 33 sur-' rounds the plugstem 6 between the plate 10 and the plug. 6 to keep the latter'in close contact with its seat. In operation the control handle 11 on plug .6 is adjusted and locked by set screw 12 to register opposite the mark (X) on'indicator plate lOwhen the opposing ports? and 8 in the plug 6 are in open communication with the valve chainbers 14:, and the pipe '15, as shown in Figure l 8. In this position the suction stroke of the fit to register opposite the mark: 3C) 011 the indicator plate 10 the plug pipe and the device is out of action, as shown in Figure 4:.

' When-the controlhandlel-l isr'otated' to register opposite the mark (Z) on plate 10, the valve char ber 14: is shut 0E from the pipe 15 and the port 16- in casing 13 is brought into communication with pipe 15 and an unobstructed passage is opened valvechamber and the port, andhetween the portand the induct-ionlpipe a dial and; pointer for the valve indicating: von the dial the co-relation of-fthe valve to the port, valve chamber andinduction pipe. v 7 2. The: heremdescribed dev ce for automaticall y controlling an auxiliary supply of air to the CYIIIIClQIYS Of' motor vehicles coniprising a casing, a valve-chamber'conneeted with the valve cas1ng,an inductionpipe for the'engine connected with thecasing atthe opposite side'to thevalve chamber, andlan inletv port for the valvecasing intermediate the valve chamber and the induction pipe,. i'n combination; with a. three-Way valve within the valve. casing for. selectively establishing communication between the .valve' chamheit turns and the automatic air valve 19 is shut oli from the prising a .\v h the valve casing, aninduction pipe foe and the induction pipe, between the valve chamber and theport, and between the port and the induction pipe, a' dial, a pointer for the valve indicating on the dial the co-rela t-ion of the valve to the'p'ort, valve chamber and induction pipe, avalve seated ithin the valve chamber, a tubular stem for the valve having ingress and egress ports, and means for automatically closing the valve.

3. The hereindescribed device for automatically controlling an auxiliary supply of air tothe cylinders of motor vehicles comcasing, a valve chamber connected the engine connected with the casing; at .the opposite side to the valve chamber, and an inlet port for the valve casing intermediate the va ve chamber and the induction pipe, in combination with ittllIQC-WZLY valve wit-hinthe valve-Sensing for, selectively establishing communication between the valve chamber,

and the induction pipe, between the val'YB chamber and the port, and-betweetithepofl and themduction pipe, a d al, a pointer for the valve indicating on the dialthe co-rela:

tion of the valve to the port, valve chamber v v 70,

and induction pipe, a: valve seated'avithin" the valve chamber, a tubular stem for the; valve having ingress and egress ports,,and. means for automatically closing the valve, said means comprising a spring controlled pivoted lever one arm of Which'venga gesvfa slot in the ,valve stem, and the other arm of which is depressed b v a springsurround,

in a rodiivhich passesthrough a bracket-sc cured to the casing. 7

In testimony, whereof heI has affixed signature in presence, oft wo witnesses.v

7 lVlL'LIAM MONTAGU C(HV-AR'D; Witnesses: Y i I T. C. ALLEN,

N; ALLEN. 

